/**
 * Copyright (c) 2020 QingLang, Inc. <baisui@qlangtech.com>
 *
 * This program is free software: you can use, redistribute, and/or modify
 * it under the terms of the GNU Affero General Public License, version 3
 * or later ("AGPL"), as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package com.qlangtech.tis.solrextend.fieldtype;

import org.apache.commons.lang.StringUtils;
import org.apache.solr.schema.BoolField;

/**
 * 根据字段的内容是否为空来判断是否为‘T’或者‘F’
 *
 * @author 百岁（baisui@qlangtech.com）
 * @date 2019年1月17日
 */
public class IsNotNullField extends BoolField {

    @Override
    public final String toInternal(String val) {
        // char ch = (val!=null && val.length()>0) ? val.charAt(0) : 0;
        return isTrue(val) ? "T" : "F";
    // return super.toInternal(val);
    }

    // 
    protected boolean isTrue(String val) {
        if (StringUtils.isNotEmpty(val)) {
            if (val.charAt(0) == 'F' && val.length() == 1) {
                return false;
            }
            return true;
        } else {
            return false;
        }
    }
    // @Override
    // public String toExternal(IndexableField f) {
    // return super.toExternal(f);
    // }
}
